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TI-2026-51714 Aliases CVE-2026-73630GHSA-4pjg-x8qj-33j5GHSA-vg9q-fc8f-43f3

SiYuan before v3.7.4 Information Disclosure via authFilePublishAccess

Priority LOW 36CWE-203Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-203.

Summary

SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/filetree/authFilePublishAccess endpoint, which is registered with CheckAuth only and is reachable anonymously. The endpoint never sets a failure code, so its outcome is signalled entirely by the response message and by the presence of a Set-Cookie header, and these signals differ across access tiers. By submitting requests with an empty password for a candidate document identifier, an anonymous attacker can distinguish whether a document is public/nonexistent, password-protected, or exists at the hidden or forbidden tier, thereby confirming the existence of documents they are not permitted to access. Because hidden and forbidden entries store an empty password, such requests also cause the server to issue a publish-auth cookie for forbidden documents.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00343 27th percentileScored 2026-11-07
Fix Fixed siyuan (siyuan-note): 3.7.4github.com/siyuan-note/siyuan/kernel (Go): 0.0.0-20260731093152-c7522b8db586

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
siyuan-notesiyuanbefore 3.7.43.7.4Patch availableCNA
—github.com/siyuan-note/siyuan/kernel (Go)before 0.0.0-20260731093152-c7522b8db5860.0.0-20260731093152-c7522b8db586Patch availableGHSA-4pjg-x8qj-33j5
  • siyuan Vendorsiyuan-note Affected before 3.7.4 Fixed in 3.7.4 Patch available CNA
  • github.com/siyuan-note/siyuan/kernel (Go) Vendor— Affected before 0.0.0-20260731093152-c7522b8db586 Fixed in 0.0.0-20260731093152-c7522b8db586 Patch available GHSA-4pjg-x8qj-33j5

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*——siyuan-note
  • cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* Versions — — ·siyuan-note

Remediation

  • Fix · CNA siyuan (siyuan-note) Fixed in 3.7.4
  • Fix · GHSA-4pjg-x8qj-33j5 github.com/siyuan-note/siyuan/kernel (Go) Fixed in 0.0.0-20260731093152-c7522b8db586 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    siyuan-note siyuan 3.7.4

    6 records Highest priority Priority HIGH 3 HIGH, 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-51036 SiYuan before v3.7.4 Publish-Boundary Bypass via WebSocketPriority HIGH 79
    • TI-2026-51258 SiYuan before v3.7.4 Information Disclosure via getAttributeViewBacklinksPriority HIGH 70
    • TI-2026-51257 SiYuan before v3.7.4 Information Disclosure via getRefIDsByFileAnnotationIDPriority HIGH 70
    Show all 6 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73630
  2. 2026-10-03 Alias added: GHSA-vg9q-fc8f-43f3
  3. 2026-10-23 Alias added: GHSA-4pjg-x8qj-33j5
  4. 2026-10-23 Fix available: Go/github.com/siyuan-note/siyuan/[email protected] · GHSA-4pjg-x8qj-33j5
  5. 2026-10-23 CVSS score added · GHSA-4pjg-x8qj-33j5
  6. 2026-10-23 Weakness changed · GHSA-4pjg-x8qj-33j5
  7. 2026-10-23 5 new references · GHSA-4pjg-x8qj-33j5

References

Advisory 2

Other 3

  • TI-2026-48492 SiYuan before v3.7.3 SQL Injection via searchDocs CVSS 4.0CRITICAL 9.9
  • TI-2026-48491 SiYuan before v3.7.3 SQL Injection via searchEmbedBlock CVSS 4.0CRITICAL 9.9
  • TI-2026-48490 SiYuan before v3.7.3 SQL Injection via fullTextSearchAssetContent CVSS 4.0CRITICAL 9.9
  • TI-2026-47010 SiYuan before v3.7.2 Unauthenticated Administrator Takeover via MCP CVSS 4.0CRITICAL 10.0
  • TI-2026-26050 SiYuan has directory traversal within its publishing service CVSS 3.1CRITICAL 9.8
  • TI-2026-25256 SiYuan: Authorization Bypass Allows Arbitrary SQL Execution via Search API CVSS 3.1CRITICAL 9.8
See all 242 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences